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A car radio draws 0.27 A of current in the autos 12-V electrical system. (a) How much electric power does the radio use?
(b) What is the effective resistance of the radio?

Respuesta :

Answer:

(a) 3.24 w (b) 44.44 ohm

Explanation:

It is given that car draws 0.27 A current so current I = 0.27 A

The system has a voltage of 12 V

(a) Electrical power = voltage ×current [tex]=12\times 0.27=3.24W[/tex]

(b) The resistance is defined as the ratio of voltage and current

So resistance [tex]R=\frac{V}{I}=\frac{12}{0.27}=44.44 ohm[/tex]

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